The present invention not only diagnoses past performance and future prospects, but also confirms the degree of diversification of customers by comparing the portfolio of the assets possessed by the customer with the model portfolio presented by the asset management server, And more particularly, to a method and system for asset allocation service using a model portfolio that enables diversified investment to be offered by suggesting an asset allocation plan that follows a model portfolio when the portfolio is less stable. A model portfolio type asset allocation system according to an embodiment of the present invention is a system for selecting a customer portfolio by inputting an analysis subject holding account from a customer terminal and presenting a model portfolio to the customer terminal to obtain one type of high profit, A portfolio selection unit receiving a selection input; The customer portfolio is compared with the model portfolio to analyze customer performance, customer risk, investment efficiency, and performance on the degree of diversification. The customer portfolio is estimated as expected rate of return, expected risk, investment efficiency, A portfolio analyzer for analyzing the model portfolio and comparing the model portfolio with the model portfolio; An analysis result providing unit that provides the client terminal with the necessity of asset allocation according to a weighted reflection value that reflects a weight to each item; And an asset allocation unit for allocating the assets following the model portfolio according to the selection of the customer terminal.
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